【摘要】 考虑节点流量随节点水压的动态变化,构建地震导致渗漏的供水管网水力模型,基于EPANET计算管网节点实际流量和水压,在此基础上结合一次二阶矩方法,得到震后低压供水时管网系统的功能可靠性指标.结合实例分析预测震后管网供水能力,并进行了震后低压供水时管网功能可靠性分析,研究结果可为城市供水管网抗震防灾管理提供借鉴.更多还原

【Abstract】 The dynamical change of the node flow is considered with water pressure. Leakage hydraulic model of water supply network is built in a possible earthquake. Combining with EPANET to compute network nodes actual flow and pressure,performance reliability index of low pressure is computed. Based on a second moment method,performance reliability index of water supply pipe network system under low pressure is obtained. In combination with case studies,water supply pipe network capacity is predicted and seismic performance analysis with low pressure hydraulic is gotten,which provides reference for disaster management of urban water supply networks earthquake.更多还原